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@ 2017-02-10T22:35:38Z

<?php
$values = array(
        4515,
        4516,
        4517,
        4518,
        4519,
        4602,
        4603,
        4604,
        4605,
        4606,
        4607
);
foreach ($values as $v) {
        $p=pack('N1', $v);
        $sw=mb_strwidth($p, 'UCS-4BE');
        echo "$sw\n";
}

Output
Performance
VLD
References
Branches

pack: documentation ( source)
mb_strwidth: documentation ( source)

preferences:dark modelive preview

62.85 ms | 402 KiB | 5 Q